EWeaver Lab 12

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Cup Collision Lab

Hypothesis: I hypothesize that the laws of conservation of momentum will apply for both elastic and inelastic collision. The momentum before the collision should be equal to the momentum after the collision. As far as kinetic energy goes, the kinetic energy is conserved for elastic collisions, but is not for inelastic collisions. If the data is taken correctly this is what should be true.




Inelastic_II_Red_Cup_EW.PNG

Inelastic II Kinetic Energy
Before (J)
 After (J)
.12007
 .06728

Kinetic Energy Conserved: 56%


Inelastic_II_Blue_Cup_EW.PNG
Inelastic II Momentum
Before (kg-m/s)
 After (kg-m/s)
.4937
 .4538
Momentum Conserved: 92%


Inelastic_I_Red_Cup_EW.PNG
Inelastic I Kinetic Energy
Before (J)
 After (J)
.0766
 .0182
Kinetic Energy Conserved: 24%
Inelastic_I_Blue_Cup_EW.PNG

Inelastic I Momentum
Before (kg-m/s)
 After (kg-m/s)
.2809
 .2422
Momentum Conserved: 86%

Elastic_II_Red_Cup_EW.PNG
Elastic II Kinetic Energy
Before (J)
 After (J)
.2111
 .1849

Kinetic Energy Conserved: 88%
Elastic_II_Blue_Cup_EW.PNG

Elastic II Momentum
Before (kg-m/s)
 After (kg-m/s)
.6554
 .6168

Momentum Conserved: 94%
Elastic_I_Blue_Cup_EW.PNG


Elastic I Kinetic Energy
Before (J)
 After (J)
.1128
 .0987

Kinetic Energy Conserved: 87.5%

Elastic_I_Red_Cup_EW.PNG
Elastic I Momentum
Before (kg-m/s)
 After (kg-m/s)
.3416
 .3227

Momentum Conserved: 94%

In conclusion, the laws of conservation of momentum and kinetic energy were generally true throughout the lab. Any error would come from the data I collected.